fix: customer/vendor balance summary and transaction report.

server/src/services/FinancialStatements/TransactionsByContact/TransactionsByContact.ts

@@ -45,16 +45,24 @@ export default class TransactionsByContact extends FinancialSheet {
    */
   protected contactTransactionRunningBalance(
     openingBalance: number,
+    accountNormal: 'credit' | 'debit',
     transactions: Omit<ITransactionsByContactsTransaction, 'runningBalance'>[]
   ): any {
     let _openingBalance = openingBalance;
 
     return transactions.map(
       (transaction: ITransactionsByContactsTransaction) => {
-        _openingBalance += transaction.debit.amount;
-        _openingBalance -= transaction.credit.amount;
+        _openingBalance +=
+          accountNormal === 'debit'
+            ? transaction.debit.amount
+            : -1 * transaction.debit.amount;
 
-        const runningBalance = this.getContactAmount(
+        _openingBalance +=
+          accountNormal === 'credit'
+            ? transaction.credit.amount
+            : -1 * transaction.credit.amount;
+
+        const runningBalance = this.getTotalAmountMeta(
           _openingBalance,
           transaction.currencyCode
         );
@@ -71,6 +79,7 @@ export default class TransactionsByContact extends FinancialSheet {
    */
   protected getContactClosingBalance(
     customerTransactions: ITransactionsByContactsTransaction[],
+    contactNormal: 'credit' | 'debit',
     openingBalance: number
   ): number {
     const closingBalance = openingBalance;
@@ -78,7 +87,11 @@ export default class TransactionsByContact extends FinancialSheet {
     const totalCredit = sumBy(customerTransactions, 'credit.amount');
     const totalDebit = sumBy(customerTransactions, 'debit.amount');
 
-    return closingBalance + (totalDebit - totalCredit);
+    const total = contactNormal === 'debit' ? 
+      totalDebit - totalCredit :
+      totalCredit - totalDebit;
+
+    return closingBalance + total;
   }
 
   /**
@@ -120,10 +133,7 @@ export default class TransactionsByContact extends FinancialSheet {
    * @param {string} currencyCode - Currency code./
    * @returns {ITransactionsByContactsAmount}
    */
-  protected getTotalAmountMeta(
-    amount: number,
-    currencyCode: string
-  ) {
+  protected getTotalAmountMeta(amount: number, currencyCode: string) {
     return {
       amount,
       formattedAmount: this.formatTotalNumber(amount, { currencyCode }),

server/src/services/FinancialStatements/TransactionsByCustomer/TransactionsByCustomers.ts

@@ -10,6 +10,8 @@ import {
 import TransactionsByContact from '../TransactionsByContact/TransactionsByContact';
 import Ledger from 'services/Accounting/Ledger';
 
+const CUSTOMER_NORMAL = 'debit';
+
 export default class TransactionsByCustomers extends TransactionsByContact {
   readonly customers: ICustomer[];
   readonly ledger: Ledger;
@@ -58,8 +60,8 @@ export default class TransactionsByCustomers extends TransactionsByContact {
 
     const ledgerEntries = ledger.getEntries();
 
-    return R.compose(    
-      R.curry(this.contactTransactionRunningBalance)(openingBalance),
+    return R.compose(
+      R.curry(this.contactTransactionRunningBalance)(openingBalance, 'debit'),
       R.map(this.contactTransactionMapper.bind(this))
     ).bind(this)(ledgerEntries);
   }
@@ -74,7 +76,10 @@ export default class TransactionsByCustomers extends TransactionsByContact {
   ): ITransactionsByCustomersCustomer {
     const openingBalance = this.getContactOpeningBalance(customer.id);
     const transactions = this.customerTransactions(customer.id, openingBalance);
-    const closingBalance = this.getContactClosingBalance(transactions, openingBalance);
+    const closingBalance = this.getCustomerClosingBalance(
+      transactions,
+      openingBalance
+    );
 
     return {
       customerName: customer.displayName,
@@ -90,6 +95,23 @@ export default class TransactionsByCustomers extends TransactionsByContact {
     };
   }
 
+  /**
+   * Retrieve the vendor closing balance from the given customer transactions.
+   * @param {ITransactionsByContactsTransaction[]} customerTransactions
+   * @param {number} openingBalance
+   * @returns
+   */
+  private getCustomerClosingBalance(
+    customerTransactions: ITransactionsByCustomersTransaction[],
+    openingBalance: number
+  ): number {
+    return this.getContactClosingBalance(
+      customerTransactions,
+      CUSTOMER_NORMAL,
+      openingBalance
+    );
+  }
+
   /**
    * Retrieve the customers sections of the report.
    * @param {ICustomer[]} customers

server/src/services/FinancialStatements/TransactionsByVendor/TransactionsByVendor.ts

@@ -1,17 +1,20 @@
 import * as R from 'ramda';
 import { sumBy } from 'lodash';
 import {
+  ITransactionsByContactsTransaction,
   ITransactionsByVendorsFilter,
   ITransactionsByVendorsTransaction,
   ITransactionsByVendorsVendor,
   ITransactionsByVendorsData,
   ILedger,
   INumberFormatQuery,
-  IVendor
+  IVendor,
 } from 'interfaces';
-import TransactionsByContact from "../TransactionsByContact/TransactionsByContact";
+import TransactionsByContact from '../TransactionsByContact/TransactionsByContact';
 
-export default class TransactionsByVendors extends TransactionsByContact{
+const VENDOR_NORMAL = 'credit';
+
+export default class TransactionsByVendors extends TransactionsByContact {
   readonly contacts: IVendor[];
   readonly transactionsByContact: any;
   readonly filter: ITransactionsByVendorsFilter;
@@ -61,7 +64,7 @@ export default class TransactionsByVendors extends TransactionsByContact{
     const openingEntries = openingBalanceLedger.getEntries();
 
     return R.compose(
-      R.curry(this.contactTransactionRunningBalance)(openingBalance),
+      R.curry(this.contactTransactionRunningBalance)(openingBalance, 'credit'),
       R.map(this.contactTransactionMapper.bind(this))
     ).bind(this)(openingEntries);
   }
@@ -71,12 +74,13 @@ export default class TransactionsByVendors extends TransactionsByContact{
    * @param {IVendor} vendor
    * @returns {ITransactionsByVendorsVendor}
    */
-  private vendorMapper(
-    vendor: IVendor
-  ): ITransactionsByVendorsVendor {
+  private vendorMapper(vendor: IVendor): ITransactionsByVendorsVendor {
     const openingBalance = this.getContactOpeningBalance(vendor.id);
     const transactions = this.vendorTransactions(vendor.id, openingBalance);
-    const closingBalance = this.getContactClosingBalance(transactions, openingBalance);
+    const closingBalance = this.getVendorClosingBalance(
+      transactions,
+      openingBalance
+    );
 
     return {
       vendorName: vendor.displayName,
@@ -92,17 +96,30 @@ export default class TransactionsByVendors extends TransactionsByContact{
     };
   }
 
+  /**
+   * Retrieve the vendor closing balance from the given customer transactions.
+   * @param {ITransactionsByContactsTransaction[]} customerTransactions
+   * @param {number} openingBalance
+   * @returns
+   */
+  private getVendorClosingBalance(
+    customerTransactions: ITransactionsByContactsTransaction[],
+    openingBalance: number
+  ) {
+    return this.getContactClosingBalance(
+      customerTransactions,
+      VENDOR_NORMAL,
+      openingBalance
+    );
+  }
+
   /**
    * Retrieve the vendors sections of the report.
    * @param {IVendor[]} vendors
    * @returns {ITransactionsByVendorsVendor[]}
    */
-  private vendorsMapper(
-    vendors: IVendor[]
-  ): ITransactionsByVendorsVendor[] {
-    return R.compose(R.map(this.vendorMapper.bind(this))).bind(this)(
-      vendors
-    );
+  private vendorsMapper(vendors: IVendor[]): ITransactionsByVendorsVendor[] {
+    return R.compose(R.map(this.vendorMapper.bind(this))).bind(this)(vendors);
   }
 
   /**
@@ -119,4 +136,4 @@ export default class TransactionsByVendors extends TransactionsByContact{
   public reportColumns() {
     return [];
   }
-}
+}

server/src/services/FinancialStatements/TransactionsByVendor/TransactionsByVendorTableRows.ts

@@ -32,8 +32,8 @@ export default class TransactionsByVendorsTableRows extends TransactionsByContac
         R.when(
           R.always(vendor.transactions.length > 0),
           R.pipe(
-            R.append(this.contactOpeningBalance(vendor)),
-            R.concat(this.contactTransactions(vendor))
+            R.concat(this.contactTransactions(vendor)),
+            R.prepend(this.contactOpeningBalance(vendor)),
           )
         ),
         R.append(this.contactClosingBalance(vendor))